A method for increasing the bandwidth of slot and patch antennas using grid‐slotted patch

A method for expanding the bandwidth of slot and patch antennas is proposed in this article. The use of grid‐slotted patch helps to improve the impedance matching of the antenna, thus the bandwidth can be extended. The design process and an analysis of using a grid of slots to increase the bandwidth...

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Bibliographic Details
Published in:	International journal of RF and microwave computer-aided engineering Vol. 31; no. 2
Main Authors:	Xiang, Kai‐Ran, Chen, Fu‐Chang
Format:	Journal Article
Language:	English
Published:	Hoboken, USA John Wiley & Sons, Inc 01-02-2021 Hindawi Limited
Subjects:	Antennas Bandwidths Broadband broadband antenna grid‐slotted patch Impedance matching patch antenna Patch antennas slot antenna Slot antennas
Online Access:	Get full text
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Description
Summary:	A method for expanding the bandwidth of slot and patch antennas is proposed in this article. The use of grid‐slotted patch helps to improve the impedance matching of the antenna, thus the bandwidth can be extended. The design process and an analysis of using a grid of slots to increase the bandwidth of a slot antenna is first given. The simulated S11 of the broadband slot antenna is less than −11 dB in the range of 2.6 to 3.42 GHz. To further demonstrate the method, an aperture‐coupled patch antenna with grid‐slotted patch is designed. The measured S11 of the broadband patch antenna is less than −10 dB in the range of 1.95 to 4.15 GHz and the peak gain is 9.6 dBi.
Bibliography:	Funding information The National Natural Science Foundation of China, Grant/Award Number: 62022035; the Guangdong Provincial Key R&D Programme, Grant/Award Number: 2020B010179002; the Guangdong Basic and Applied Basic Research Foundation, Grant/Award Number: 2019B151502032
ISSN:	1096-4290 1099-047X
DOI:	10.1002/mmce.22510